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BA1-B0-34-450-521-D The Littelfuse Inc. BA1-B0-34-450-521-D is a magnetic hydraulic delay circuit breaker. It features a 5A current rating and 250V AC / 80V DC voltage rating.
Mfr Part #:

BA1-B0-34-450-521-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-34-450-521-D is a magnetic hydraulic delay circuit breaker. It features a 5A current rating and 250V AC / 80V DC voltage rating.
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BA1-B0-34-450-521-D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating
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BA1-B0-34-450-521-D Description

Short technical summary and product information.

This Littelfuse Inc. BA1-B0-34-450-521-D is a magnetic (hydraulic delay) circuit breaker designed for panel mount applications. It offers a current rating of 5A and voltage ratings of 250V AC and 80V DC.

 

The breaker features a lever actuator and a single pole configuration. It is approved by CCC, CSA, UL, and VDE agencies, indicating compliance with various safety standards.

 

Environmental compliance includes RoHS3 compliance, REACH unaffected status, and an MSL of 1. This circuit breaker is suitable for applications requiring reliable overcurrent protection with a hydraulic delay mechanism.

BA1-B0-34-450-521-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BA1-B0-34-450-521-D Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

BA1-B0-34-450-521-D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BA1-B0-34-450-521-D Features

  • 5A current rating for circuit protection.
  • 250V AC and 80V DC voltage ratings.
  • Magnetic hydraulic delay breaker type.
  • Panel mount with lever actuator.
  • Approved by CCC, CSA, UL, VDE.

BA1-B0-34-450-521-D Applications

  • Protects industrial control panel power distribution lines.
  • Safeguards motor circuits against sustained overload conditions.
  • Integrates into HVAC equipment main power supplies.
  • Provides certified overcurrent protection for commercial machinery.
  • Secures low-voltage DC control circuits under 80V.

BA1-B0-34-450-521-D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B0-34-450-521-D circuit breaker?

The current rating is 5A.

What are the AC and DC voltage ratings for this circuit breaker?

The AC voltage rating is 250V and the DC voltage rating is 80V.

What type of breaker mechanism does the BA1-B0-34-450-521-D use?

It uses a magnetic (hydraulic delay) mechanism.

How is the BA1-B0-34-450-521-D circuit breaker mounted?

It is designed for panel mounting.

Which approval agencies have certified this circuit breaker?

It is approved by CCC, CSA, UL, and VDE.

Is the BA1-B0-34-450-521-D RoHS compliant?

Yes, it is RoHS3 Compliant.

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